import numpy as np
# random
a1=np.random.rand(10)
print(a1)
a2=np.random.rand(3,4)
print(a2)
a3=np.random.randint(3,7,(5,))
print(a3)
a4=np.random.randint(3,size=(5,))
print(a4)
a5=np.random.randint(3,7,(3,4))
print(a5)
a6=np.random.normal(10,3,(3,4))
print(a6)
a7=np.random.randn(3,4)
print(a7)
a8=np.random.random_sample([1,2,3])
a9=np.random.random([1,2,3])
a10=np.random.ranf([1,2,3])
a11=np.random.sample([1,2,3])
print(a8,a9,a10,a11)
print(np.random.choice(10,5))
